Pismis 4 is a
colourful open cluster in the edge of Vela Supernova Remnant. It contain around
45
stars identified in the cluster with the brightest at magnitude 7.3. Visible in
the background we have the filaments of one of the two loops of the Vela SNR
which make this object a nice target for large focal lengths telescopes

Paris Marie Pismis was an
astronomer of Armenian descent (1911-1999) who studied open clusters in Mexico
and was the first woman to graduate from the scientific faculty of Istanbul
University. (*)